/**
 * In-process WORM archive: append-only records + bloom.
 * @module archive
 */

import { Bloom } from './bloom.js';

export class WormArchive {
  /**
   * @param {string} archiveId
   */
  constructor(archiveId) {
    this.archiveId = archiveId;
    this.bloom = new Bloom();
    /** @type {Map<string, object[]>} */
    this.byHash = new Map();
  }

  /**
   * @param {{ sha256: string, kind: string, record: object }} put
   */
  put(put) {
    const key = String(put.sha256).toLowerCase();
    const list = this.byHash.get(key) ?? [];
    list.push({ kind: put.kind, record: put.record, archiveId: this.archiveId, storedAt: new Date().toISOString() });
    this.byHash.set(key, list);
    this.bloom.add(key);
  }

  /**
   * Bloom miss → null (caller must stay silent). Hit → records (may be empty if false positive).
   * @param {string} sha256
   * @returns {object[]|null}
   */
  query(sha256) {
    const key = String(sha256).toLowerCase();
    if (!this.bloom.mightHave(key)) return null;
    return this.byHash.get(key) ?? [];
  }
}